Born in Mandeville, Louisiana on March 2, 1876, Lewis Morgan began practising law in Covington, Louisiana in 1902. After serving in several minor political offices, Morgan was elected to the United States Congress in 1912 and stayed there until 1917, at which time he resumed his law practice. Morgan was an unsuccessful candidate for governor in the election of 1944, having been backed by New Orleans mayor Robert Maestri as the candidate of the Long faction. Morgan died in New Orleans on June 10, 1950.